#include <iostream>

using namespace std;

class Circle
{
private:
    float x;
    double per, area;
public:
    Circle(double l);
    void Per();
    void Area();
};
int main()
{
    double x;
    cin >> x;
    Circle A(x);

    A.Per();
    A.Area();

    return 0;
}

Circle::Circle(double l)
{
    x = l;
}
void Circle::Per()
{
    cout << "The perimeter of a Circle is " << 2*3.14*x << endl;
}
void Circle::Area()
{
    cout << "The area of a Circle is " << 3.14*x*x << endl;
}
